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Finding the Fourth Proportional to 366,780.70, 550,171.05 and 130,147.30

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Solution

The fourth proportional to 366,780.70, 550,171.05 and 130,147.30 is: 195,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,780.70 : 550,171.05 = 130,147.30 : x
  2. Step 2: Convert to fraction form
    366,780.70/550,171.05 = 130,147.30/x
  3. Step 3: Cross multiply
    366,780.70x = 550,171.05 × 130,147.30
  4. Step 4: Simplify right side
    366,780.70x = 71,603,276,695.67
  5. Step 5: Solve for x
    x = 71,603,276,695.67/366,780.70
  6. Step 6: Final answer
    x = 195,220.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.